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Moderate mag. 5.2 earthquake - Volcano Islands, Japan Region on Saturday, 18 August 2018

This quake was likely a foreshock of the 6.1 quake: Volcano Islands, Japan Region, 19 Aug 2018 04:05, which followed after 21 hours.
Moderate mag. 5.2 earthquake  - Volcano Islands, Japan Region on Saturday, 18 August 2018
18 Aug 07:37 UTC: First to report: GFZ after 9 minutes.
Date & time: Saturday, 18 August 2018 07:28 UTC
Magnitude: 5.2
Depth: 10.0 km
Epicenter latitude / longitude: 23.38°N / 143.54°E (Japan)
Nearest volcano: Nikko (130 km / 81 mi)
Nearby towns and cities:
1419 km (881 mi) SE of Tokyo (pop: 8,336,600)
Primary data source: GFZ
Estimated released energy: 4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
TimeMag. / DepthLocationSource
Sat, 18 Aug 07:28 UTCM 5.2 / 10 kmVolcano Islands, Japan RegionGFZ
Sat, 18 Aug 07:28 UTCM 5.2 / 31.1 kmVolcano Islands, Japan RegionGeoAu
2018-08-18 17:28:31 +10:00 (18 Aug 07:28:31 UTC)M 5.2 / 18.4 km- 257km SE of Iwo Jima, JapanUSGS

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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11035.1 km NE of epicenter [Map] / Very weak shaking (MMI II) : Had arisen for drink of water. Looked at clock. Felt bed shake when lying in bed. poop

Earlier earthquakes in the same area since 1900

Moderate mag. 5.2 earthquake - Volcano Islands, Japan Region on Saturday, 18 August 2018

Map of earlier quakes


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